Product Core Brief
- Model: REU610
- Brand: ABB
- Series: 610 Series
- Core Function: Voltage protection, supervision, and monitoring
- Type: Numerical voltage protection relay
- Key Features: Overvoltage protection; undervoltage protection; residual overvoltage supervision; event recording
- Typical Applications: Distribution substations, industrial power systems, feeders, capacitor banks, busbars
- Condition: New Original (New Surplus) / Tested Used Available
REU610 is designed for voltage supervision and protection applications in medium-voltage and high-voltage distribution systems.
Product Introduction
ABB REU610 is a numerical voltage protection relay developed for utility substations and industrial electrical systems requiring reliable voltage supervision and fast protective response. It is commonly used in feeder protection panels, transformer bays, capacitor bank protection systems, and busbar voltage monitoring applications.
The relay combines overvoltage, undervoltage, and residual overvoltage protection functions within a compact protection platform. In practical field applications, REU610 is frequently selected for systems where stable voltage supervision and dependable alarm handling are more important than advanced communication features found in newer IEC 61850 relays.
Its compact panel footprint, simple parameter structure, and stable operation make it widely used in retrofit projects and existing ABB 610 series protection schemes. Exact hardware revision, communication option, and auxiliary supply specification should always be verified before replacement or commissioning.
Key Selling Points & Differentiators
- ABB REU610 integrates overvoltage, undervoltage, and residual overvoltage protection functions in one compact relay platform.
- Designed for feeders, capacitor banks, transformers, motors, and busbar supervision applications.
- Fast alarm and trip operation improves voltage fault selectivity in distribution systems.
- Compact panel-mount design simplifies retrofit projects in existing switchgear cabinets.
- Event recording and disturbance logging support troubleshooting and fault analysis.
- LCD display and front keypad simplify local configuration and diagnostics.
- Wide auxiliary supply range supports both AC and DC station power systems.
- Lower engineering complexity compared with modern multifunction IEC 61850 IED platforms.
